40305210751121 has 4 divisors (see below), whose sum is σ = 40305230249700. Its totient is φ = 40305191252544.

The previous prime is 40305210751111. The next prime is 40305210751213. The reversal of 40305210751121 is 12115701250304.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28194358346896 + 12110852404225 = 5309836^2 + 3480065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40305210751121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40305210751111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6223676 + ... + 10924493.

It is an arithmetic number, because the mean of its divisors is an integer number (10076307562425).

Almost surely, 2^{40305210751121} is an apocalyptic number.

It is an amenable number.

40305210751121 is a deficient number, since it is larger than the sum of its proper divisors (19498579).

40305210751121 is a wasteful number, since it uses less digits than its factorization.

40305210751121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19498578.

The product of its (nonzero) digits is 8400, while the sum is 32.

The spelling of 40305210751121 in words is "forty trillion, three hundred five billion, two hundred ten million, seven hundred fifty-one thousand, one hundred twenty-one".